Jaewoong Eum (skydoves)

Recomposition Pipeline in Jetpack Compose

Manifest Android Interview - The Ultimate Android & Jetpack Compose Interview Guide Master Android interviews with 108 questions, 162 exercises, and 50+ pro tips. Deep dive into Android Framework, Jetpack Compose, UI architecture, and more. By Google Developer Expert Jaewoong Eum.

Manifest Android Interview has passed 3,000 copies in the hands of Android developers worldwide. 🎉

Grateful for the support from Android developers everywhere.

www.android.skydoves.me

Introduces `ResultEventBus` and `ResultStore` to `navigation3-runtime` to facilitate passing results between entries.

android-review.googlesource.com/c/platform/f...

Compose Stability Analyzer plugin crossed 20k downloads.

An IntelliJ + Kotlin Compiler plugin for Android developers, providing real-time analysis of Jetpack Compose composable functions' stability directly within Android Studio or IntelliJ.

plugins.jetbrains.com/plugin/28767...

5 Kotlin Internals You Should Know Kotlin makes writing clean, expressive code feel effortless. Features like data classes, lazy properties, and extension functions save you…

I just published a new article, '5 Kotlin Internals You Should Know'.

In this article, you’ll explore five Kotlin internals that most developers should know, revealing what really happens when the compiler transforms your Kotlin code into Java bytecode.

skydoves.medium.com/5-kotlin-int...

Working on the Manifest Android Interview course.

250+ quiz questions + 380+ practical questions with complete answers for all of them that were previously left as open questions in the book.

It will take another 2~3 months to complete.

Building a Google Maps Style Bottom Sheet with Jetpack Compose Learn how to build a Google Maps style bottom sheet in Jetpack Compose. Discover how to create flexible, draggable bottom sheets with smooth animations and gestures.

Just published a new article, 'Building a Google Maps Style Bottom Sheet with Jetpack Compose'.

In this article, you'll explore how to build a Google Maps-style bottom sheet using FlexibleBottomSheet, covering how to configure three expansion states.

doveletter.skydoves.me/preview/arti...

Add encryption support for Datastore with Tink.

android-review.googlesource.com/c/platform/f...

Practical Kotlin Deep Dive Course v1.0.1 has been published!

Now each lesson features a Code Playground with ready-to-run Kotlin examples, step-by-step explanations, and open challenges that let you practice concepts immediately after learning them.

doveletter.skydoves.me/course/kotlin

Article - Compose Stability Analyzer 0.7.0: Recomposition Cascade and Live Heatmap.

doveletter.skydoves.me/preview/arti...

🔥 Heatmap: See live recomposition counts from your device overlaid above composable functions. Click any count to inspect parameter changes.

🌊 Cascade: Right-click any composable to trace downstream recomposition impact with stability status, cycle detection, and source navigation.

Compose Stability Analyzer 0.7.0 has been released!

Now, it introduces a real-time recomposition tracing, Recomposition Heatmap, and Recomposition Cascade Visualizer directly in your IDE.

github.com/skydoves/com...

Docs for Compose Stability Analyzer, Android Studio plugin.

skydoves.github.io/compose-stab...

How kotlinx.serialization generates code: a compiler plugin deep dive In this article, you'll dive deep into the internal mechanisms of the kotlinx.serialization compiler plugin.

I just published a new Kotlin article, 'How kotlinx.serialization generates code: a compiler plugin deep dive'.

Dive deep into the internal mechanisms of the kotlinx.serialization compiler plugin and explore the real use cases from the @revenuecat.com SDK.

www.revenuecat.com/blog/enginee...

4 exclusive articles on Android, Compose, and Kotlin were delivered via Dove Letter over the past 7 days.

doveletter.skydoves.me/preview?tab=...

@jetbrains.com's MarketPlace:

plugins.jetbrains.com/plugin/28767...

Compose Stability Analyzer 0.6.7 has been released!

Real-time visibility into your composables' stability directly in Android Studio, and automatically catch stability regressions in CI before they reach production.

github.com/skydoves/com...

If your company supports budgets for courses or certifications, this is a perfect fit.

Practical Kotlin Deep Dive Course (Certificate) Unlocking the 'How' and 'Why' of the Kotlin internals and fundamentals. 158 interactive quizzes to test your knowledge and earn a certification.

Excited to publish the Course: Practical Kotlin Deep Dive! 🚀

Unlock the 'how' and 'why' behind Kotlin internals and fundamentals with 160 interactive quizzes, including advanced topics, and earn a certificate upon completion.

doveletter.skydoves.me/course/kotlin

Scalable API Response Handling Across Multi Layered Architectures with Sandwich Learn how to handle API responses elegantly across multi-layered architectures using Sandwich. Discover patterns for error handling, response mapping, and building maintainable network layers in Andro...

I just published a new article, 'Scalable API Response Handling Across Multi-Layered Architectures with Sandwich'.

doveletter.skydoves.me/preview/arti...

Anyone been here? This place has major Instagram vibes for Android developers.

Only Android developers know this guy.

Sponsor @skydoves on GitHub Sponsors Hi, 👋 I'm an Android/OSS Engineer. I have created and contributed more than 70+ open-source libraries related to Android & Kotlin that are used all over the globe. I'd love to give positive effect...

github.com/sponsors/sky...

I’m incredibly grateful to everyone who sponsors me on @github.com for my open-source projects and Dove Letter.💖

Your support motivates me to keep contributing to the open-source community and the Android, Kotlin, and Compose ecosystems.

Yep, this is exactly what Korean university entrance exam questions are like, haha

Shared Internals: Kotlin's New Proposal for Cross-Module Visibility Explore Kotlin's KEEP proposal for shared internal visibility. Learn how this new modifier enables cross-module visibility control while maintaining encapsulation from external consumers.

Thanks @androidweekly.bsky.social and @kotlinweekly.bsky.social for featuring my recent article, 'Shared Internals: Kotlin's New Proposal for Cross-Module Visibility'.

The KEEP proposal about the new visibility level sits between internal and public.

doveletter.skydoves.me/preview/arti...

Haha, above the median is already enough.

The Android Developer Quiz has crossed 1,000+ submissions, and the median score is 40.

Thanks for reporting this issue! I updated the wrong answer for question 5.

What score will you get on this Android Developer quiz? 😁

Test your knowledge on Android, Jetpack Compose, and Kotlin. Select all correct answers for each question. Each question is worth 10 points.

doveletter.skydoves.me/quiz